From b7817f23c0e60082a546f441c783a70413fd904f Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 16 Jan 2021 20:38:54 +0100
Subject: [PATCH] avfilter/vf_phase: add support for commands

---
 doc/filters.texi       | 4 ++++
 libavfilter/vf_phase.c | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 93fdd1ed44..fc2e250566 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -15777,6 +15777,10 @@ Filter selects among @samp{t}, @samp{b} and @samp{p} using image analysis only.
 @end table
 @end table
 
+@subsection Commands
+
+This filter supports the all above options as @ref{commands}.
+
 @section photosensitivity
 Reduce various flashes in video, so to help users with epilepsy.
 
diff --git a/libavfilter/vf_phase.c b/libavfilter/vf_phase.c
index 8536444db7..d4f580a609 100644
--- a/libavfilter/vf_phase.c
+++ b/libavfilter/vf_phase.c
@@ -74,7 +74,7 @@ typedef struct PhaseContext {
 } PhaseContext;
 
 #define OFFSET(x) offsetof(PhaseContext, x)
-#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
 
 static const AVOption phase_options[] = {
@@ -245,4 +245,5 @@ AVFilter ff_vf_phase = {
     .inputs        = phase_inputs,
     .outputs       = phase_outputs,
     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
+    .process_command = ff_filter_process_command,
 };